Not bad, from the time I downloaded and installed DD it only took about 12 hours to pay for and get DDpro. It took 5 minutes to pay for it and 11 hours and 55 minutes to get pro. Instructions are very vague for accessing pro.
I got it and as far as I am concerned that is all that matters.

I think you will have to find it from help menu or have to send mail to DD forums and ask them directly for about button because I also tried to search but I didn't found. So just mail the forum administrator and ask them directly for the about button. Normally what i know the button is found in User CP but you will have to search it. I think you will surely found the button.mediaplacement